Apparatus for manufacturing compressed fluid containers



L. YEJESKI Feb. 13, 1940.

APPARATUS FOR MANUFACTURING COMPRESSED FLUID CONTAINERS Filed Sept. 16, 1937 2 Sheets-Sheet 1 INVENTOR.

I Lech Kvjexki, yew. W 1, 11L? ATTOR NEYS Feb. 13, 1940. L, YEJESKI 2,189,852

APPARATUS FOR MANUFACTURING COMPRESSED FLUID CONTAINERS 2 Sheets-Sheet 2 VS." Vg A IN V ENTOR.

Patented Feb. 13, 1940 r'rus son Acronmo comaassan 1 ii eons-amass Zife, New flash, N. Y.

application hepher 16, 1987, Serial No. 164,131

' at. see -1a) The present invention relates to containers for compressed fluids and to an improved method and apparatus for their manufacture.

More specifically, it relates to small containers of the type used for charging liquid in syphon bottles with a gas. In such an operation, a container of this type, which is filled with a gas under pressure, is pierced to allow the gas contained therein to escape into the liquid in the syphon bottle, so that the liquid may be suitably treated. For example, carbonated water has been obtained in this fashion by treating water with carbon dioxide.

Heretofore, it has been extremely diflicult to it keep high pressure fluid containers of this type w free from leakage because of the difficulty of closing efiectively. the opening through which the container is filled.

An object of my invention, accordingly, is to m provide a container for high pressure fluids which is effectively closed to prevent leakage of the contents thereof.

Another object of the invention is to provide a container of the above character which is filled with fluid under pressure and then sealed in a simple and effective manner.

A further object of the invention is to provide an improved method whereby containers of the above character may be readily filled with fluid under pressure and then sealed.

A further object of my invention is to provide an improved apparatus by means. of which containers of the character above described may be effectively manufactured.

as My improved non-leaking seal for high pressure fluid containers of this type is obtained by driving a punch into the center of the neck of the container. In practice it is found that the closure is more eifective if the punch is formed so that it has a greater axis in one direction than in another. This operation deforms the metal in the neck and tends to crowd it into the filling opening, providing an effective closure therefor. The punch causes the metal about the periphery of the neck to be stressed in tension, so that the metal crowded into the opening is under compression, thus forming a tight and effective. seal.

Additional objects of the invention will be apparent from the following detailed description and from the accompanying drawings, in which:

Figure 1 is a view in elevation illustrating an apparatus for filling and sealing high pressure fluid containers in accordance with this invention;

Figure 2 is an enlarged view in vertical section,

taken on a plane similar to the plane of the section in Figure 1, showing the first step in the manufacture of the container, wherein it is charged with gas;

Figure 3 is a view similar to Figure 2, showing 5 the second step in the manufacture of the container wherein a punch is forced into the center of the neck thereof Figure 4 is a view similar to Figure 2 showing the finished container from which the punch has 10 been withdrawn;

Figure 5 is a view in section of part of'the apparatus taken along the line 5--5 of Figure 2 and looking in the direction of the arrows;

Figure 6 is a plan view showing the top of a 1 ram and a punch used in the operations illustrated in Figures 2, 3 and 4;

Figure 'I is a view of a container constructed in accordance with this invention showing the recessed neck after the sealing operation has been 20.

completed.

Referring to Figure 1, the frame of an apparatus constructed in accordance with this invention is shown at ill and is formed with guide ways II in which a plurality of rods l2 are slidably 25 mounted. A portion near the upper extremities of the rods I2 is threaded to receive the nuts l3v which are adapted to carry a head M. The head I4 is formed with apertures 15 in which the rods l2 are received. Nuts it are threaded on the 30 extremities of the rods l2, and serve to hold the head I securely in position. Compression springs l'l serve to keep the head Id at a predetermined height above the'frame l0, and also serve to return it to this position position after it .35 has been forced downwardly.

A bolt I8 passes through the middle of the head II and is provided with a threaded section at its lower extremity which, is received in a tapped hole 19, formed in an anvil 20. The lower 40 portion of the anvil 20 is recessed at 20' to receive the container 2| and holds it in a. fixed position during the filling and sealing operation. The container 2| is shaped in the form of a bulb and is carried in an inverted position by a carrier 45 block 22 which may hold a plurality of containers for filling simultaneously. The carrier bock 22 is adapted to slide on the guides 23 and 24. wh ch are secured to the frame In of the apparatus. The notches 25 on the carrier block 22 coonerate 50 with the slides 28, only one of which isshn-wn, to lock the carrier block 22 securely in place for filling and sealing. A cam roller 21 is mounted on the outer extremity of each of the s ides 26. which engages a cam 2|, journaled at 29 to rotate 55 in the direction indicated by the arrow. The cam 28 acts to move the slide 28 into one of the notches 28, and it is returned to its initial position by the action of a spring 88, which is attached at one end to a pin 8| on the frame l8, and at the other end to a pin 82 on a boss 88 which is formed on the slide 28.

The lower ends of the rods l2 are secured in the arms of a U-shaped member 84 on which is mounted a cam roller 88. Between the arms of the U-shaped member is a shaft 88 on which are mounted three separate cam mechanisms 81, 88 and 89', which rotate in the direction indicated by the arrow.

The cam 88 is adapted to engage the cam roller 85 to force the member 84 downwardly and thus lower the anvil 20 down on the container 2|.

The double acting cam 81 engages a cam roller which is journaled on a shaft 4| formed on a ram 42. which is slidably mounted in the frame l8, directly below the anvil 20 and which serves to move the ram upwardly for the filling and sealing operations.

The cam 89 is adapted to engage a cam roller 43 which is mounted on an arm 44 of a bellcrank mechanism 45 pivoted at 48 on the frame ID. The other arm 41 of the bell-crank mechanism 45 engages the shaft 4| to lower the ram 42 after the sealing operation has been co pleted.

The ram 42 is formed with a passage 48 to which the high pressure fluid is fed from a tube 49. The upper end of the passage 48 terminates in a chamber 50, the top of which is threaded to receive a hexagonal nut 8|, illustrated in Figure 6, which is formed with a chamber 52 in which a punch 53 is adapted to be received. The punch 53 preferably has a rectangularly shaped tip and is tapered at 54 to form a valve which controls the flow of gas to the container 2|, in cooperation with a section of the chamber 82, which is tapered to form a valve seat 55. The upper surface of the punch 53 may be curved as shown in the drawings to provide a space between it and the neck through which gas under pressure may be supplied to the container. The top of the hexagonal nut 5| is provided with a circular recess 58 in which the neck of the container 2| is adapted to be snugly received, so that there will be no leakage of gas during the filling operation. As shown in Figure 5, the punch 88 is formed with grooves 55 to allow passage of the gas to the container 2|.

The lower portion of the punch 58 is formed with a flange 51, which is adapted to fit snugly against the lower portion of the hexagonal nut 5|, against which it is urged by a compression spring 58. The spring 58 is seated at 88 on a disc 60 in the bottom of the chamber 88. As illustrated in Figures 2, 3 and 4, the disc 80 is provided with the passages 6| through which gas may flow to the container 2|.

At the beginning of the fllling and sealing operation, the head I4 is in its highest position while the ram 42 is in its lowest position. A container carriage 22 is moved on the guides 28 and 24 into a position where the container 2| is directly over a ram 42. The cam 28 is then in a position to move the slide 28, against the compression of the spring 80 to engage the notch 28 and thus lock the container carriage 22 in position over the ram 42. The rotation of the cam 88 then acts to lower the head I 4 until the container is received in the recess 20' in the anvil 20. At this point the rotation of the double acting cam 81 forces the ram upwardly until the neck of the container 2| is snugly received in the recess 58 in the hexagonal nut 8|, as illustrated in Figure 2. In this position the punch is forced downwardly against the compression in the spring 58 until it rests on the disc 60, thus allowing gas to enter the container. After the container 2| has been properly charged with gas, the continued rotation of the cam 81 forces the ram 42 still further upwardly until the hexagonal nut 5| makes contact with the bottom surface of the container carriage 22, as illustrated in Figure 2. This motion forces the tip of the punch 52 into the center of the neck of the container 2|, thus crowding the metal into the filling opening and closing it tightly. The operation causes the metal about the periphery of the neck to be stressed in tension so that the metal about the closure is stressed in compression, thus additionally aiding the closure.

The continued rotation of the shaft 36 causes the cam 88 to engage the cam roller 48 and thus actuate the bell-crank mechanism 45. The arm 4'! of the bell-crank mechanism engages the shaft 4| and thus moves the ram 42 downwardly so that the punch is removed from the neck of the container 2|, as illustrated in Figure 3. At the same time the cam 88 allows the head to rise upwardly, due to the force of compression in the springs l1, thus removing the anvil 20 from above the container 2|, whereupon it is removed from the machine.

The finished container is illustrated in Figure 7, where the rectangularly shaped recess in the neck is clearly shown. It will be noted that the hole has lost its original shape, and all that remains is a linear seam on .either side of which the metal is under compression. This form of closurefunctions to retain the medium efl'ectively in the container and prevent escape thereof until it is to be used in the desired fashion.

The invention also provides a simple and improved method and apparatus whereby these superior containers may be conveniently filled with fluid and then sealed, in large quantities, so that the benefits of large scale production may be attained in their use.

While a specific embodiment of this invention has been described above, it is to be understood that it is to be in no way limited thereby, but is capable of modification in form and detail within the scope of the appended claims.

I claim:

1. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising means to position the container, means to charge the container with a fluid under pressure, and means for working the material adjacent the opening in the neck of the container into the filling opening forming a closure.

2. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising means to position the container, means to charge the container with a fluid under pressure, and a reciprocable punch to deform the material adjacent the opening in the central portion of the neck of the container to work it into the filling opening.

3. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, means to position the container over the frame, a reciprocable ram in the frame having means to charge ,the container with a fluid under pressure, a

punch in the ram to deform the material in the neck of the container and to filling opening, a portion of the punch forming a valve, and a seat in the ram for the said valve portion.

4. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, means to position the container over the frame, a reciprocable ram in the frame having means to charge the container with a fluid under pressure, a punch in the ram to deform the material in the neck of the container and to' crowd it into the filling opening, a spring on the punch, a tapered portion on the punch forming a valve, and a portion in the ram forming a seat for the said valve portion. g

5. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, means to position the container over the frame, a reciprocable ram in the frame, the ram having a chamber therein, a punch in the said chamber to deform the material in the central portion of the neck of the container to crowd it into the filling opening, a spring on the punch and seated in the said chamber, a tapered portion on the punch forming a valve, a portion in the ram forming a seat for the said valve portion, the said punch having therein a passage to permit the flow of fluid to the containe the said ram having therein a passage in communication with the said chamber, and means to supply a high pressure fluid to the, said last passage whereby the container may be charged therewith.

6. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, a slidable carriage for the container, guide brackets on the frame for the said container carriage, a reciprocable anvil over the container carriage whereby 1 vertical motion of the container during the filling and sealing operations is prevented, a reciprocrowd it into the cable ram having a chamber therein in the frame having means to charge the container with a fluid under pressure, and a punch in the ram to deformihe material in the neck of the container to crowd it into the filling opening.

'1. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, a slidable carriage for the container, guide brackets on the frame for the said container carriage, means to lock the said container carriage in position, a reciprocable anvil over the container carriage whereby vertical motion of the container during the filling and sealing operations'is prevented, actuating means for the said anvil, a reciprocable ram -in the frame having means associated therewith to charge the container with a fluid under pressure, actuating means for the ram, the latter having a chamber therein, and a punch in the ram to deform the material in the neck of the container to crowd it into the filling opening.

8. An apparatus for manufacturing containers for high pressure fluids, said containers having a narrow neck and an opening therein whereby they may be filled, comprising a frame, a slidable carriage for the container, guide brackets on the frame for the said container carriage, a reciprocable anvil over the container carriage whereby vertical motion of the container during the filling and sealing operations is prevented, a reciprocable ram in the frame, having a recess therein to receive the neck of the container, the ram having a chamber therein, a punch in the said chamber to deform the material in the central portion of the neck of the container to crowd it into the filling opening, a spring on the punch and seated in the said chamber, a tapered portion onthe punch forming a valve, a portion in the ram forming a seat for the said valve portion, the said punch having therein a passage to permit the flow of fluid to the container, said ram having therein a passage in communication with the said chamber, and means to supply a high pressure fluid to the said passage whereby the container may be charged therewith.

LECH YEJESKI. 

